---
_id: '65495'
abstract:
- lang: eng
  text: "This paper presents a holistic framework for the transition from diesel to
    electric bus networks,\r\ncrucial for meeting EU regulations targeting 100% zero-emission
    urban buses by\r\n2035. We employ a two-phase solution framework: in phase 1,
    we solve the Charging Location\r\nand Electric Vehicle Scheduling Problem to generate
    vehicle schedules that are feasible\r\nfor electric operation; in phase 2, these
    schedules serve as input to a multi-period transition\r\nplanning model that minimizes
    the total cost of ownership while determining fleet\r\nreplacement and charging
    infrastructure deployment. Our experiments show that schedules\r\nobtained from
    solving the integrated charging location and vehicle scheduling problem\r\nsignificantly
    outperform traditional methods, resulting in lower total cost of ownership. Additionally,\r\ntransition
    plans reduce local emissions by up to 85% compared to a diesel-only\r\nscenario.
    We find that vehicle rotations with long distances and sufficient idle time are\r\nprioritized
    for electrification, enabling earlier emission reductions and cost savings. This\r\nhighlights
    the importance of adopting vehicle scheduling tailored for electric buses, rather\r\nthan
    relying on legacy diesel schedules."
article_type: original
author:
- first_name: Miriam
  full_name: Stumpe, Miriam
  id: '64135'
  last_name: Stumpe
- first_name: David
  full_name: Rößler-von Saß, David
  last_name: Rößler-von Saß
- first_name: Kliewer
  full_name: Natalia, Kliewer
  last_name: Natalia
- first_name: Guido
  full_name: Schryen, Guido
  id: '72850'
  last_name: Schryen
citation:
  ama: Stumpe M, Rößler-von Saß D, Natalia K, Schryen G. Impact of Vehicle Scheduling
    and Strategic Transition Planning on Zero-Emission Bus Systems. <i>Transportation
    Research Interdisciplinary Perspectives</i>.
  apa: Stumpe, M., Rößler-von Saß, D., Natalia, K., &#38; Schryen, G. (n.d.). Impact
    of Vehicle Scheduling and Strategic Transition Planning on Zero-Emission Bus Systems.
    <i>Transportation Research Interdisciplinary Perspectives</i>.
  bibtex: '@article{Stumpe_Rößler-von Saß_Natalia_Schryen, title={Impact of Vehicle
    Scheduling and Strategic Transition Planning on Zero-Emission Bus Systems}, journal={Transportation
    Research Interdisciplinary Perspectives}, author={Stumpe, Miriam and Rößler-von
    Saß, David and Natalia, Kliewer and Schryen, Guido} }'
  chicago: Stumpe, Miriam, David Rößler-von Saß, Kliewer Natalia, and Guido Schryen.
    “Impact of Vehicle Scheduling and Strategic Transition Planning on Zero-Emission
    Bus Systems.” <i>Transportation Research Interdisciplinary Perspectives</i>, n.d.
  ieee: M. Stumpe, D. Rößler-von Saß, K. Natalia, and G. Schryen, “Impact of Vehicle
    Scheduling and Strategic Transition Planning on Zero-Emission Bus Systems,” <i>Transportation
    Research Interdisciplinary Perspectives</i>.
  mla: Stumpe, Miriam, et al. “Impact of Vehicle Scheduling and Strategic Transition
    Planning on Zero-Emission Bus Systems.” <i>Transportation Research Interdisciplinary
    Perspectives</i>.
  short: M. Stumpe, D. Rößler-von Saß, K. Natalia, G. Schryen, Transportation Research
    Interdisciplinary Perspectives (n.d.).
date_created: 2026-04-24T09:13:39Z
date_updated: 2026-04-27T09:31:42Z
keyword:
- electric bus
- multi-period planning
- electric vehicle scheduling
- charging infrastructure
- fleet replacement
language:
- iso: eng
publication: Transportation Research Interdisciplinary Perspectives
publication_status: accepted
quality_controlled: '1'
status: public
title: Impact of Vehicle Scheduling and Strategic Transition Planning on Zero-Emission
  Bus Systems
type: journal_article
user_id: '40298'
year: '2026'
...
---
_id: '10674'
author:
- first_name: Nam
  full_name: Ho, Nam
  last_name: Ho
- first_name: Paul
  full_name: Kaufmann, Paul
  last_name: Kaufmann
- first_name: Marco
  full_name: Platzner, Marco
  id: '398'
  last_name: Platzner
citation:
  ama: 'Ho N, Kaufmann P, Platzner M. A hardware/software infrastructure for performance
    monitoring on LEON3 multicore platforms. In: <i>24th Intl. Conf. on Field Programmable
    Logic and Applications (FPL)</i>. ; 2014:1-4. doi:<a href="https://doi.org/10.1109/FPL.2014.6927437">10.1109/FPL.2014.6927437</a>'
  apa: Ho, N., Kaufmann, P., &#38; Platzner, M. (2014). A hardware/software infrastructure
    for performance monitoring on LEON3 multicore platforms. In <i>24th Intl. Conf.
    on Field Programmable Logic and Applications (FPL)</i> (pp. 1–4). <a href="https://doi.org/10.1109/FPL.2014.6927437">https://doi.org/10.1109/FPL.2014.6927437</a>
  bibtex: '@inproceedings{Ho_Kaufmann_Platzner_2014, title={A hardware/software infrastructure
    for performance monitoring on LEON3 multicore platforms}, DOI={<a href="https://doi.org/10.1109/FPL.2014.6927437">10.1109/FPL.2014.6927437</a>},
    booktitle={24th Intl. Conf. on Field Programmable Logic and Applications (FPL)},
    author={Ho, Nam and Kaufmann, Paul and Platzner, Marco}, year={2014}, pages={1–4}
    }'
  chicago: Ho, Nam, Paul Kaufmann, and Marco Platzner. “A Hardware/Software Infrastructure
    for Performance Monitoring on LEON3 Multicore Platforms.” In <i>24th Intl. Conf.
    on Field Programmable Logic and Applications (FPL)</i>, 1–4, 2014. <a href="https://doi.org/10.1109/FPL.2014.6927437">https://doi.org/10.1109/FPL.2014.6927437</a>.
  ieee: N. Ho, P. Kaufmann, and M. Platzner, “A hardware/software infrastructure for
    performance monitoring on LEON3 multicore platforms,” in <i>24th Intl. Conf. on
    Field Programmable Logic and Applications (FPL)</i>, 2014, pp. 1–4.
  mla: Ho, Nam, et al. “A Hardware/Software Infrastructure for Performance Monitoring
    on LEON3 Multicore Platforms.” <i>24th Intl. Conf. on Field Programmable Logic
    and Applications (FPL)</i>, 2014, pp. 1–4, doi:<a href="https://doi.org/10.1109/FPL.2014.6927437">10.1109/FPL.2014.6927437</a>.
  short: 'N. Ho, P. Kaufmann, M. Platzner, in: 24th Intl. Conf. on Field Programmable
    Logic and Applications (FPL), 2014, pp. 1–4.'
date_created: 2019-07-10T11:18:01Z
date_updated: 2022-01-06T06:50:49Z
department:
- _id: '78'
doi: 10.1109/FPL.2014.6927437
keyword:
- Linux
- hardware-software codesign
- multiprocessing systems
- parallel processing
- LEON3 multicore platform
- Linux kernel
- PMU
- hardware counters
- hardware-software infrastructure
- high performance embedded computing
- perf_event
- performance monitoring unit
- Computer architecture
- Hardware
- Monitoring
- Phasor measurement units
- Radiation detectors
- Registers
- Software
language:
- iso: eng
page: 1-4
project:
- _id: '31'
  grant_number: '257906'
  name: Engineering Proprioception in Computing Systems
publication: 24th Intl. Conf. on Field Programmable Logic and Applications (FPL)
status: public
title: A hardware/software infrastructure for performance monitoring on LEON3 multicore
  platforms
type: conference
user_id: '3118'
year: '2014'
...
---
_id: '10677'
author:
- first_name: Nam
  full_name: Ho, Nam
  last_name: Ho
- first_name: Paul
  full_name: Kaufmann, Paul
  last_name: Kaufmann
- first_name: Marco
  full_name: Platzner, Marco
  id: '398'
  last_name: Platzner
citation:
  ama: 'Ho N, Kaufmann P, Platzner M. Towards self-adaptive caches: A run-time reconfigurable
    multi-core infrastructure. In: <i>2014 {IEEE} Intl. Conf. on Evolvable Systems
    (ICES)</i>. ; 2014:31-37. doi:<a href="https://doi.org/10.1109/ICES.2014.7008719">10.1109/ICES.2014.7008719</a>'
  apa: 'Ho, N., Kaufmann, P., &#38; Platzner, M. (2014). Towards self-adaptive caches:
    A run-time reconfigurable multi-core infrastructure. In <i>2014 {IEEE} Intl. Conf.
    on Evolvable Systems (ICES)</i> (pp. 31–37). <a href="https://doi.org/10.1109/ICES.2014.7008719">https://doi.org/10.1109/ICES.2014.7008719</a>'
  bibtex: '@inproceedings{Ho_Kaufmann_Platzner_2014, title={Towards self-adaptive
    caches: A run-time reconfigurable multi-core infrastructure}, DOI={<a href="https://doi.org/10.1109/ICES.2014.7008719">10.1109/ICES.2014.7008719</a>},
    booktitle={2014 {IEEE} Intl. Conf. on Evolvable Systems (ICES)}, author={Ho, Nam
    and Kaufmann, Paul and Platzner, Marco}, year={2014}, pages={31–37} }'
  chicago: 'Ho, Nam, Paul Kaufmann, and Marco Platzner. “Towards Self-Adaptive Caches:
    A Run-Time Reconfigurable Multi-Core Infrastructure.” In <i>2014 {IEEE} Intl.
    Conf. on Evolvable Systems (ICES)</i>, 31–37, 2014. <a href="https://doi.org/10.1109/ICES.2014.7008719">https://doi.org/10.1109/ICES.2014.7008719</a>.'
  ieee: 'N. Ho, P. Kaufmann, and M. Platzner, “Towards self-adaptive caches: A run-time
    reconfigurable multi-core infrastructure,” in <i>2014 {IEEE} Intl. Conf. on Evolvable
    Systems (ICES)</i>, 2014, pp. 31–37.'
  mla: 'Ho, Nam, et al. “Towards Self-Adaptive Caches: A Run-Time Reconfigurable Multi-Core
    Infrastructure.” <i>2014 {IEEE} Intl. Conf. on Evolvable Systems (ICES)</i>, 2014,
    pp. 31–37, doi:<a href="https://doi.org/10.1109/ICES.2014.7008719">10.1109/ICES.2014.7008719</a>.'
  short: 'N. Ho, P. Kaufmann, M. Platzner, in: 2014 {IEEE} Intl. Conf. on Evolvable
    Systems (ICES), 2014, pp. 31–37.'
date_created: 2019-07-10T11:23:00Z
date_updated: 2022-01-06T06:50:49Z
department:
- _id: '78'
doi: 10.1109/ICES.2014.7008719
keyword:
- Linux
- cache storage
- embedded systems
- granular computing
- multiprocessing systems
- reconfigurable architectures
- Leon3 SPARe processor
- custom logic events
- evolvable-self-adaptable processor cache
- fine granular profiling
- integer unit events
- measurement infrastructure
- microarchitectural events
- multicore embedded system
- perf_event standard Linux performance measurement interface
- processor properties
- run-time reconfigurable memory-to-cache address mapping engine
- run-time reconfigurable multicore infrastructure
- split-level caching
- Field programmable gate arrays
- Frequency locked loops
- Irrigation
- Phasor measurement units
- Registers
- Weaving
language:
- iso: eng
page: 31-37
publication: 2014 {IEEE} Intl. Conf. on Evolvable Systems (ICES)
status: public
title: 'Towards self-adaptive caches: A run-time reconfigurable multi-core infrastructure'
type: conference
user_id: '3118'
year: '2014'
...
---
_id: '6287'
abstract:
- lang: eng
  text: Spamming remains a form of Internet abuse, which burdens the Internet infrastructure,
    is generally regarded as an annoyance, and is said to cause a huge economic harm.
    Many technological, organizational, and legislative anti-spam measures have already
    been proposed and implemented, but have not led to any substantial decrease in
    the number of spam e-mails. We propose a scalable and flexible infrastructure
    framework that integrates several anti-spam measures and that features both a
    technological and an organizational facet. The key element of our infrastructure
    is a new organizational unit that reliably and transparently limits the number
    of e-mails that can be sent per day and per account. We also analyze the proposed
    framework in terms of its theoretical effectiveness, the required resources, and
    its limitations.
author:
- first_name: Guido
  full_name: Schryen, Guido
  id: '72850'
  last_name: Schryen
citation:
  ama: 'Schryen G. <i>Preventing E-Mail Spam: The Conceptualization and the Analysis
    of an Infrastructure Framework</i>.; 2007.'
  apa: 'Schryen, G. (2007). <i>Preventing E-mail Spam: The Conceptualization and the
    Analysis of an Infrastructure Framework</i>.'
  bibtex: '@book{Schryen_2007, title={Preventing E-mail Spam: The Conceptualization
    and the Analysis of an Infrastructure Framework}, author={Schryen, Guido}, year={2007}
    }'
  chicago: 'Schryen, Guido. <i>Preventing E-Mail Spam: The Conceptualization and the
    Analysis of an Infrastructure Framework</i>, 2007.'
  ieee: 'G. Schryen, <i>Preventing E-mail Spam: The Conceptualization and the Analysis
    of an Infrastructure Framework</i>. 2007.'
  mla: 'Schryen, Guido. <i>Preventing E-Mail Spam: The Conceptualization and the Analysis
    of an Infrastructure Framework</i>. 2007.'
  short: 'G. Schryen, Preventing E-Mail Spam: The Conceptualization and the Analysis
    of an Infrastructure Framework, 2007.'
date_created: 2018-12-18T12:50:22Z
date_updated: 2022-01-06T07:03:00Z
ddc:
- '000'
department:
- _id: '277'
file:
- access_level: open_access
  content_type: application/pdf
  creator: hsiemes
  date_created: 2018-12-18T13:23:40Z
  date_updated: 2018-12-18T13:23:40Z
  file_id: '6322'
  file_name: anti_spam_framework.pdf
  file_size: 456755
  relation: main_file
file_date_updated: 2018-12-18T13:23:40Z
has_accepted_license: '1'
keyword:
- Email
- Infrastructure
- Internet
- Spam
language:
- iso: eng
oa: '1'
status: public
title: 'Preventing E-mail Spam: The Conceptualization and the Analysis of an Infrastructure
  Framework'
type: report
user_id: '61579'
year: '2007'
...
---
_id: '5655'
abstract:
- lang: eng
  text: Spam e-mails have become a serious technological and economic problem. Up
    to now, by deploying complementary anti-spam measures, we have been reasonably
    able to withstand spam e-mails and use the Internet for regular communication.
    However, if we are to avert the danger of losing the Internet e-mail service in
    its capacity as a valuable, free and worldwide medium of open communication, anti-spam
    activities should be performed more systematically than is currently the case
    regarding the mainly heuristic, anti-spam measures in place. A formal framework,
    within which the existing delivery routes that a spam e-mail may take, and anti-spam
    measures and their effectiveness can be investigated, will perhaps encourage a
    shift in methodology and pave the way for new, holistic anti-spam measures. This
    paper presents a model of the Internet e-mail infrastructure as a directed graph
    and a deterministic finite automaton and draws on automata theory to formally
    derive the spam delivery routes. The most important anti-spam measures are then
    described. Methods controlling only specific delivery routes are evaluated in
    terms of how effectively they cover the modeled e-mail infrastructure; methods
    operating independently of any particular routes receive a more general assessment.
author:
- first_name: Guido
  full_name: Schryen, Guido
  id: '72850'
  last_name: Schryen
citation:
  ama: Schryen G. Do anti-spam measures effectively cover the e-mail communication
    network? A formal approach. <i>The Journal of Information Systems Security (AIS
    Special Interest Group in Security)</i>. 2007;3(2):66-90.
  apa: Schryen, G. (2007). Do anti-spam measures effectively cover the e-mail communication
    network? A formal approach. <i>The Journal of Information Systems Security (AIS
    Special Interest Group in Security)</i>, <i>3</i>(2), 66–90.
  bibtex: '@article{Schryen_2007, title={Do anti-spam measures effectively cover the
    e-mail communication network? A formal approach}, volume={3}, number={2}, journal={The
    Journal of Information Systems Security (AIS Special Interest Group in Security)},
    author={Schryen, Guido}, year={2007}, pages={66–90} }'
  chicago: 'Schryen, Guido. “Do Anti-Spam Measures Effectively Cover the e-Mail Communication
    Network? A Formal Approach.” <i>The Journal of Information Systems Security (AIS
    Special Interest Group in Security)</i> 3, no. 2 (2007): 66–90.'
  ieee: G. Schryen, “Do anti-spam measures effectively cover the e-mail communication
    network? A formal approach,” <i>The Journal of Information Systems Security (AIS
    Special Interest Group in Security)</i>, vol. 3, no. 2, pp. 66–90, 2007.
  mla: Schryen, Guido. “Do Anti-Spam Measures Effectively Cover the e-Mail Communication
    Network? A Formal Approach.” <i>The Journal of Information Systems Security (AIS
    Special Interest Group in Security)</i>, vol. 3, no. 2, 2007, pp. 66–90.
  short: G. Schryen, The Journal of Information Systems Security (AIS Special Interest
    Group in Security) 3 (2007) 66–90.
date_created: 2018-11-14T14:51:41Z
date_updated: 2022-01-06T07:02:22Z
ddc:
- '000'
department:
- _id: '277'
extern: '1'
file:
- access_level: open_access
  content_type: application/pdf
  creator: hsiemes
  date_created: 2018-12-18T13:25:12Z
  date_updated: 2018-12-18T13:25:12Z
  file_id: '6324'
  file_name: Do anti-spam measures effectively cover the e-mail communication - Journal
    version.pdf
  file_size: 100448
  relation: main_file
file_date_updated: 2018-12-18T13:25:12Z
has_accepted_license: '1'
intvolume: '         3'
issue: '2'
keyword:
- e-mail
- spam
- e-mail infrastructure
- anti-spam measures
- spamming options
language:
- iso: eng
oa: '1'
page: 66-90
publication: The Journal of Information Systems Security (AIS Special Interest Group
  in Security)
status: public
title: Do anti-spam measures effectively cover the e-mail communication network? A
  formal approach
type: journal_article
user_id: '61579'
volume: 3
year: '2007'
...